Stabilizing selective pressures result in _______. a. rapid, broad evolutionary changes b. limited evolutionary changes c. an increase in genetic diversity d. extreme gene distributions
Answers
Answer:
B
Explanation:
Answer:
B. limited evolutionary changes
Explanation:
Related Questions
Thinking about the number of carbon atoms in glucose and in pyruvic acid, explain why there is one molecule of glucose on the left side of the arrow and two molecules of pyruvic acid on the right side of the arrows
Answers
Answer:
Each glucose molecule has 6 C atoms, while each pyruvic acid molecule contains 3 C atoms. As a result, there must be two molecules to hold all six C atoms.
Explanation:
the human genome project multiple choice question. was opposed by the bush administration on ethical grounds. has identified and classified more than 20,000 genes. has been the source of great controversy. was funded solely by private sources.
Answers
The human genome project has identified and classified more than 20,000 genes.
Which of the following statements is true regarding the Human Genome Project?
a) It was opposed by the Bush administration on the ethical grounds.
b) It has identified and classified more than 20,000 genes.
c) It has been the source of the great controversy.
d) It was funded solely by the private sources.
Answer: b) It has identified and classified more than 20,000 genes.
The Human Genome Project has identified and classified more than 20,000 genes. The Human Genome Project has identified and classified more than 20,000 genes.
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I am able to fill a glass of water to the top and it does not overflow…which property of water allows this to happen
Answers
Answer: surface tension
Explanation:
Answer:
When we fill the glass with water, we notice right away that it can go over the brim of the glass without spilling. This is because of surface tension. Surface tension holds the water together and acts against what would normally cause the water to fall – gravity – because each molecule of water is attracted to the other water molecules around it.
Explanation:
extra facts Water molecules are attracted to each other and is why you can fill a glass and as it gets to the top it will stay together to a certain point. However that stick together ability is pretty mild so when gravitational forces take effect the bonds are broken and it flows down the sides of the glass. Unfortunately, the attraction between the water molecules is only so strong. As we add coins, the amount of water spilling over the edges is getting larger and larger until the water just can’t take it anymore! Gravity is pulling on too many of the molecules for their attraction to keep them up, and the water spills down the side of the glass.What to Do. Place the glass on the saucer and fill the glass of water all the way to the brim. You’ll notice that the water hangs slightly over the top of the glass but doesn’t spill out just yet. Now, add the coins one at a time to the glass of water, dropping them in rim-first (not face down).
What items could you use to model a longitudinal and a transverse wave?
Answers
Answer: Transverse waves are always characterized by particle motion being perpendicular to wave motion. A longitudinal wave is a wave in which particles of the medium move in a direction parallel to the direction that the wave moves. Examples of transverse waves include vibrations on a string and ripples on the surface of water. We can make a horizontal transverse wave by moving the slinky vertically up and down. In a longitudinal wave the particles are displaced parallel to the direction the wave travels. brainliest??
Explanation:
Predict which of the following can impact an ecosystem's available resources?
Answers
Answer:Long term drought, change of season from winter to summer, forest fire are unfavorable environmental factors which can deplete the amount of resources already available with the ecosystem. The long term drought will be a condition in which the ecosystem will suffer from non-availability of water.
Explanation:
the chromosome pairs line up in the center of the cell is called (A) prophase (b)mitosis (c)meiosis l (D)meiosis ll
Answers
The correct answer is (b) mitosis.
What is a mitosis ?Mitosis is a type of cell division that results in two daughter cells that are identical to the parent cell. It is the process by which a single cell divides into two identical daughter cells, each with the same number of chromosomes as the parent cell. Mitosis is important for growth, repair, and maintenance of multicellular organisms, as it allows for the production of new cells to replace old or damaged ones. The stages of mitosis are prophase, metaphase, anaphase, and telophase.
What is a telophase?Telophase is the final stage of mitosis in which the chromatids or chromosomes have reached the opposite poles of the cell and begin to unwind and decondense. The nuclear envelope reforms around the separated chromosomes, forming two distinct nuclei. Cytokinesis, the division of the cytoplasm, also occurs during this stage, resulting in two separate daughter cells.
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Droughts occur due to climate change and elevated temperatures, which in turn may lead to other consequences as well. Imagine that a wildfire happened in the nature reserve. Predict what would happen if such an environmental shift that is so extreme and rapid
Hits the nature reserve and the population of deer mice does not have time to adapt. Propose a possible solution for this problem.
Answers
Answer:
this is not a correct Q
this is wrong
how is a bird eating fruit an example of mutualism
Answers
Answer:
It both benefits the bird by providing sustenance and the plant by possibly spreading seeds through fecal matter.
which animal would win in a competition:
dugong vs. colo colo opossum
Answers
Competition is an ecological relationship in which organisms of different species compete for resources like food, shelter, and light.
What is Competition?Competition is defined as the relationship between the organisms for resources, in which one of the organisms is harmed.For example, Dugong is a marine mammal, which is an herbivore and is native to the Indian Pacific Ocean. The organisms primarily graze in grasses and are found in marine waters only. Cola Cola Opossum is a mountain monkey, which is a carnivorous, nocturnal, and terrestrial organism. The organisms when competing with Dugong can win the competition as they are carnivorous and can feed on the marine mammal.
Thus, the competition between cola cola opossum and dugong can result in dugong being prey.
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which human organ system has ovary
Answers
Answer:
The ovary is an organ found in the female reproductive system
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Hope this helps :)
How does inorganic nitrogen from the atmosphere
(N2) get into living systems?
Answers
Answer:
When an organism excretes or dies, nitrogen is in the form of organic nitrogen in its tissues (e.g. amino acids, DNA). During the ammonification process, many fungi and prokaryotes then break the tissue down and release inorganic Nitrogen into the atmosphere as ammonia.
Explanation:
Plants use their roots for nitrogen compounds. When they consume the seeds, animals acquire certain chemicals. When plants and livestock die, or animals excrete waste, the organic nitrogen compounds return to the soil, where microorganisms known as decomposers break down their compounds.
Which of the following is true about cancer?
A. It occurs when a tissue cell does not stop dividing and becomes immortal.
B. It only occurs in organisms with geometric growth patterns, rather than exponential growth.
C. It occurs when too many cells become specialized and not enough stem cells remain.
D. It occurs when cells begin to reach their Hayflick limit and die off.
Reset Selection
Answers
Answer:
d
Explanation:
because cancer occurs when cells begin to reach their hayflick
What is a molecule in your own words?
Answers
Answer:
A molecule is two or more atoms bonded together to form a single chemical entity.
State five importance of soil water.
Answers
Answer:
Soils provide readily available nutrients to plants and animals by converting dead organic matter into various nutrient forms.Soils can effectively remove impurities, kill disease agents, and degrade contaminants.Soils maintain a net absorption of oxygen and methane, and undergo a net release of carbon dioxide and nitrous oxide. Soil filters our water, provides essential nutrients to our forests and crops, and helps regulate the Earth's temperature as well as many of the important greenhouse gases.Soils offer plants physical support, air, water, temperature moderation, nutrients, and protection from toxins.Explanation:
9) Plants reproduce
with seeds or
with spores
and other different plant parts such as roots, stems, and leaves.
Answers
Answer:
Plants reproduce s**ually with seeds or as**ually with spores and other different plant parts such as roots, stems, and leaves.
Explanation:
The forest experiences a fire and many of the trees are burned and blackened. Which graph most likely shows the shift in the
caterpillar population's phenotypes several generations after the fire?
Answers
The graph that most likely shows the shift in the caterpillar population's phenotypes several generations after the fire is graph B. The correct option is B.
What is a forest fire?A wildfire is an unattended fire that occurs in vegetation found in wildlands, frequently in rural locations. In the United States, wildland fires are started by people almost 85% of the time.
Campfires that are left unattended, the burning of debris, equipment use, malfunctions, carelessly tossed cigarettes, and intentional arsonist acts are all examples of human-caused fires. One of the two natural origins of fires is lightning.
Therefore, the correct option is B, graph B.
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The question is incomplete. Your most probably complete question is given below: The graph options are added.
When your muscle gets tired, it builds up the _______ and makes it more powerful.
Group of answer choices
momentum
blood
cells
tissue
Answers
Answer: Tissue
Explanation: Hope this helps!
Photosynthesis & Cell Respiration
Topic: Cellular Respiration
•Goal of cellular respiration = to convert the_______ energy in food (________) to ________ energy stored _____
•we use_________ 1st for energy, but any food can be processed/broken down as a source of ________
•Chemical Equation:
_____+______->____+_____+____ (ATP)
Reactants=________
○_____ (glucose) and _____ oxygen
Products=________
○____(carbon dioxide)and _______ (water)
• Note: Energy is released in the form of ATP from this process but isn't considered a product
Structure of Mitochondria
• Cellular respiration takes place in the _________ which has 2 parts:
○inner membrane:_______
○matrix:________
Answers
Each cell in the body has mitochondria and cytoplasm, which are where cellular respiration takes place.
Explain about the mitochondria?The membrane-bound cell organelles known as mitochondria are responsible for producing the majority of the chemical energy required to drive a cell's metabolic functions (mitochondrion, singular). The majority of a cell's energy is produced by mitochondria, which also contain specific genetic material that differs from that present in the nucleus.
The cellular organelles known as mitochondria carry out the process of turning food energy into a form that cells can use. There are hundreds to thousands of mitochondria in each cell, which are found in the fluid surrounding the nucleus of the cell (the cytoplasm).
Each cell in your heart muscle has roughly 5,000 mitochondria. Since these cells require more energy than any other organ in the body, they have more mitochondria than any other organ!
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Can an organism function with a faulty organ system?
Answers
Answer:
All of the organ systems of the body work together to maintain homeostasis of the organism. If homeostasis fails, death or disease may result.
Explanation:
Homeostasis is the ability to maintain a relatively stable internal state that persists despite changes in the world outside. All living organisms, from plants to puppies to people, must regulate their internal environment to process energy and ultimately survive
hardened skin along proximal edge of nail is called
Answers
The hardened skin along the proximal edge of the nail is called the "cuticle" or "eponychium."
The eponychium is a small band of skin that covers the base of the nail and helps to protect the nail matrix, which is the area where new nail cells are produced. The eponychium also helps to guide the nail plate as it grows and helps to prevent debris and bacteria from getting underneath the nail plate.
Sometimes, the eponychium can become inflamed and swollen, resulting in a condition known as paronychia. Paronychia can be caused by a bacterial or fungal infection, trauma to the nail, or other skin conditions such as eczema or psoriasis. In severe cases, paronychia can lead to abscess formation and require medical treatment. Regular hand washing, proper nail care, and avoiding biting or picking at the nails can help prevent paronychia.
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What body region of the mollusk is makes the shell of the organism?
a. Head/Foot
b. Mantle
c. Shell
d. Visceral Mass
3. Allostichaster polyplax is a species of sea star that reprodu
Answers
Answer: The mantle
Explanation:
Mollusks also have an extension of the body wall called the mantle. This portion of the animal's anatomy is responsible for secreting the shell. The mantle encloses the mantle cavity which contains the Ctenidia (gills), anus and excretory pores.
Which figure is the percent of energy at which one trophic level generally flows to the next level?
1)10%
2)35%
3)50%
4)100%
Answers
Answer:
Which figure is the percent of energy at which one trophic level generally flows to the next level 10
The simple model below is a neutral magnesium (Mg) atom with the element’s most common mass number.
A purple circle labeled M g sits at center with 3 concentric black lines around it. The inner line has 2 small green balls on it. The middle line has 8 small green balls on it. The outer line has 2 small green balls on it.
What must happen to an atom of magnesium in order to become a magnesium ion Mg+2?
Answers
Answer:
It must lose two electrons and become an ion.
Explanation: Hope this helps :)
Answer:
D. It must lose two electrons and become an ion.
Explanation:
1 point
Primary succession is ecological succession that begins in a place that
has soil
has little soil
has simple plants
has rock
Answers
Primary succession is ecological succession that begins in a place that has rock.
Primary succession is a fascinating process of ecological succession that occurs in areas devoid of soil or where soil development is minimal. It involves the colonization and establishment of life in barren or highly disturbed environments, such as rocky terrains, volcanic islands, or glacial moraines.
In primary succession, the initial pioneer species often consist of lichens and mosses, which are capable of tolerating harsh conditions and facilitating soil formation.
These simple plants play a crucial role in the early stages of primary succession by breaking down rocks through physical and chemical weathering. As they grow and die, their organic matter accumulates, contributing to the formation of rudimentary soil.
Over time, more complex plants like grasses, ferns, and shrubs begin to colonize the area. These plants further contribute to soil development by adding organic matter, enhancing nutrient cycling, and improving soil structure. Their root systems help bind the soil particles, preventing erosion and creating a more stable environment for other organisms.
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Definition: This is a type of protein found in the cell membrane, which regulates the coming and going of substances into or out of the cell.
Answers
Write 5 general statements and 5 specific statements.
note: Specific statements must be related to the general statements.
(plsss due date is today!)
Answers
Answer:
Dictatorship was a good idea when it started, but as it progressed it got worse for the peoples economy and a worse way for people to live, in fear, while when you rule in fear, you are bound to live in fear.
Explanation:
Theres one do the rest of your homework, and general statements are specific statements with a little more detail.
5. How do bacteria "mark" DNA after replication?
Answers
Bacteria mark their DNA after replication by adding a chemical modification to a specific DNA sequence known as the GATC site. This modification is called methylation and involves the addition of a methyl group to one of the nucleotides in the DNA sequence.
The methylation of the GATC site is carried out by a DNA methyltransferase enzyme that recognizes and modifies the DNA sequence after replication. This modification serves as a signal to the bacterial cell that the DNA has been replicated and is ready for cell division. In addition to serving as a replication marker, DNA methylation can also play a role in regulating gene expression and protecting the bacterial cell from foreign DNA, such as from viruses. By methylating their own DNA, bacteria can distinguish it from foreign DNA that may enter the cell and use it as a template for replication.
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the main role of the ______ gene is to check for breaks in the dna.
Answers
The main role of the p53 gene is to check for breaks in the DNA.
The p53 gene, also known as the TP53 gene, plays a critical role in maintaining the stability of the genome. While it is not its sole function, one of the important roles of the p53 gene is indeed to monitor the integrity of DNA and respond to breaks or damage.
The p53 gene encodes a protein called p53, which acts as a transcription factor. When the DNA in a cell is damaged due to various factors such as radiation, chemicals, or errors during DNA replication, p53 is activated to initiate appropriate cellular responses.
Here's a more detailed explanation of how p53 checks for breaks in DNA:
DNA Damage Detection: The p53 protein continuously monitors the DNA for any abnormalities or damage. It does this by interacting with other proteins involved in the DNA damage response pathway, as well as by directly binding to damaged DNA sites.
Activation of DNA Repair: If DNA damage is detected, p53 initiates the activation of DNA repair mechanisms. It can activate various repair pathways, including base excision repair, nucleotide excision repair, and homologous recombination.
By coordinating these repair processes, p53 helps to restore the integrity of the DNA.
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if a human eats salmon, will the atoms from the salmon protein still exist inside the person?
Answers
Answer:
yes because the protein atoms in the fish will be consumed by the human
Explanation:
explain why you have trouble seeing colors as clearly at night as you do during the day
Answers
Cones and rods are both gentle. The rods let us see in extremely low light but do not allow the detection of light, whereas the discs allow us see tint but do not work in low light. Cones lose their capacity to react to light when it turns dark.
Why is nighttime colour vision so challenging?Cones & rods are both light-sensitive. The rods let us to see in extremely low light but do not permit the detection of colour, whereas the cones provide us to see colour but do not function in low light. Cones lose their capacity to react to light as it gets dark.
Why am I unable to see properly at night?Nyctalopia, often known as night blindness, is the inability to go see well at nighttime or in dimly lit environments like a restaurant or theatre. It is frequently linked to a difficulty to swiftly adjust from a brightly light to a dimly lit area.
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